Version 4 SHEET 1 3356 2016 WIRE -336 208 -336 192 WIRE -336 240 -336 208 WIRE -336 240 -400 240 WIRE -272 240 -336 240 WIRE -400 272 -400 240 WIRE -400 272 -416 272 WIRE -272 272 -272 240 WIRE -256 272 -272 272 WIRE -656 320 -704 320 WIRE -528 320 -656 320 WIRE -480 320 -528 320 WIRE -128 320 -192 320 WIRE -656 336 -656 320 WIRE -528 384 -528 320 WIRE -416 400 -416 368 WIRE -368 400 -416 400 WIRE -256 400 -256 368 WIRE -256 400 -304 400 WIRE -128 400 -128 320 WIRE -416 416 -416 400 WIRE -256 416 -256 400 WIRE -656 432 -656 416 WIRE -656 448 -656 432 WIRE -416 512 -416 496 WIRE -336 512 -416 512 WIRE -256 512 -256 496 WIRE -256 512 -336 512 WIRE 128 528 128 432 WIRE 128 528 64 528 WIRE 176 528 128 528 WIRE 240 528 176 528 WIRE -656 544 -656 528 WIRE -656 544 -704 544 WIRE -528 544 -528 464 WIRE -528 544 -656 544 WIRE -128 544 -128 480 WIRE -128 544 -528 544 WIRE 64 560 64 528 WIRE 128 560 128 528 WIRE 240 560 240 528 WIRE -336 576 -336 512 WIRE -208 576 -336 576 WIRE -208 592 -208 576 WIRE -336 640 -336 576 WIRE 64 672 64 640 WIRE 128 672 128 640 WIRE 128 672 64 672 WIRE 160 672 128 672 WIRE 240 672 240 624 WIRE 240 672 160 672 WIRE -208 688 -208 672 WIRE -208 704 -208 688 WIRE 128 704 128 672 WIRE -336 800 -336 720 WIRE -208 800 -208 784 WIRE -208 800 -336 800 WIRE 128 800 128 784 WIRE 128 800 -208 800 FLAG -704 544 1 FLAG -656 432 3 FLAG -336 112 99 FLAG -336 208 4 FLAG -704 320 2 FLAG -336 240 4 FLAG -416 400 5 FLAG -256 400 6 FLAG -208 688 49 FLAG -336 576 50 FLAG 384 112 99 FLAG 384 192 8 FLAG 512 112 9 FLAG 512 176 8 FLAG 640 112 10 FLAG 640 176 9 FLAG 784 96 10 FLAG 784 176 50 FLAG 128 800 99 FLAG 160 672 98 FLAG 80 768 99 FLAG 80 720 49 FLAG 176 528 9 FLAG 400 480 98 FLAG 400 400 15 FLAG 352 416 9 FLAG 352 464 49 FLAG 496 400 98 FLAG 496 480 15 FLAG 608 400 98 FLAG 608 464 15 FLAG 432 768 98 FLAG 432 688 16 FLAG 384 704 3 FLAG 384 752 49 FLAG 544 688 98 FLAG 544 768 17 FLAG 656 688 17 FLAG 656 768 16 FLAG 912 128 50 FLAG 912 208 99 FLAG 1104 128 99 FLAG 1104 208 23 FLAG 1056 144 99 FLAG 1056 192 15 FLAG 1200 128 24 FLAG 1200 208 23 FLAG 1312 128 26 FLAG 1312 192 24 FLAG 1424 128 26 FLAG 1424 208 22 FLAG 912 320 23 FLAG 912 400 25 FLAG 1104 320 25 FLAG 1104 384 27 FLAG 1200 320 22 FLAG 1200 400 27 FLAG 1312 320 22 FLAG 1312 400 21 FLAG 1424 320 21 FLAG 1424 384 15 FLAG 912 512 20 FLAG 912 592 22 FLAG 1104 512 15 FLAG 1104 576 20 FLAG 1200 512 22 FLAG 1200 592 28 FLAG 1312 512 22 FLAG 1312 592 28 FLAG -128 320 7 SYMBOL current -528 384 M0 SYMATTR InstName IOS SYMATTR Value 5n SYMBOL Misc\\EuropeanResistor -672 544 M180 WINDOW 0 31 76 Left 2 WINDOW 3 31 40 Left 2 SYMATTR InstName R1 SYMATTR Value 500K SYMBOL Misc\\EuropeanResistor -672 432 M180 WINDOW 0 31 76 Left 2 WINDOW 3 31 40 Left 2 SYMATTR InstName R2 SYMATTR Value 500K SYMBOL current -336 112 M0 SYMATTR InstName I1 SYMATTR Value 100µ SYMBOL Misc\\EuropeanResistor -400 400 M0 SYMATTR InstName R3 SYMATTR Value 517 SYMBOL Misc\\EuropeanResistor -272 400 R0 SYMATTR InstName R4 SYMATTR Value 517 SYMBOL npn -480 368 M180 SYMATTR InstName Q1 SYMATTR Value QX SYMBOL npn -192 368 R180 SYMATTR InstName Q2 SYMATTR Value QX SYMBOL cap -368 384 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C4 SYMATTR Value 128.27p SYMBOL current -336 720 M180 WINDOW 0 24 80 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName I2 SYMATTR Value 75µ SYMBOL epoly -128 384 R0 SYMATTR InstName EOS SYMATTR Value POLY (1) 16 49 2E-3 1 SYMBOL Misc\\EuropeanResistor -224 800 M180 WINDOW 0 31 76 Left 2 WINDOW 3 31 40 Left 2 SYMATTR InstName R8 SYMATTR Value 60K SYMBOL Misc\\EuropeanResistor -224 688 M180 WINDOW 0 31 76 Left 2 WINDOW 3 31 40 Left 2 SYMATTR InstName R9 SYMATTR Value 60K SYMBOL voltage 384 96 R0 SYMATTR InstName V2 SYMATTR Value 1.63 SYMBOL diode 496 112 R0 SYMATTR InstName D1 SYMATTR Value DX SYMBOL diode 624 112 R0 SYMATTR InstName D2 SYMATTR Value DX SYMBOL voltage 784 80 R0 SYMATTR InstName V3 SYMATTR Value .635 SYMBOL e 128 800 M180 SYMATTR InstName EH SYMATTR Value 1 SYMBOL gpoly 64 656 R180 WINDOW 0 24 104 Left 2 WINDOW 3 24 16 Left 2 SYMATTR InstName G1 SYMATTR Value POLY (1) 5 6 0 9.8772E-4 0 .3459 SYMBOL Misc\\EuropeanResistor 112 656 M180 WINDOW 0 31 76 Left 2 WINDOW 3 31 40 Left 2 SYMATTR InstName R5 SYMATTR Value 101.2433MEG SYMBOL cap 224 624 M180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C3 SYMATTR Value 200p SYMBOL g 400 384 R0 SYMATTR InstName G3 SYMATTR Value 1E-6 SYMBOL Misc\\EuropeanResistor 480 384 R0 SYMATTR InstName R12 SYMATTR Value 1MEG SYMBOL cap 592 400 R0 SYMATTR InstName C5 SYMATTR Value 7.9577E-14 SYMBOL g 432 672 R0 SYMATTR InstName G4 SYMATTR Value 5.6234E-8 SYMBOL ind 528 672 R0 SYMATTR InstName L2 SYMATTR Value 15.9m SYMBOL Misc\\EuropeanResistor 640 672 R0 SYMATTR InstName R13 SYMATTR Value 1K SYMBOL f 912 128 R0 SYMATTR InstName F6 SYMATTR Value POLY (1) V6 300U 1 SYMBOL e 1104 112 R0 SYMATTR InstName E1 SYMATTR Value 1 SYMBOL Misc\\EuropeanResistor 1184 112 R0 SYMATTR InstName R16 SYMATTR Value 17.5 SYMBOL diode 1296 128 R0 SYMATTR InstName D5 SYMATTR Value DX SYMBOL voltage 1424 112 R0 SYMATTR InstName V6 SYMATTR Value .63V SYMBOL Misc\\EuropeanResistor 896 304 R0 SYMATTR InstName R17 SYMATTR Value 17.5 SYMBOL diode 1088 320 R0 SYMATTR InstName D6 SYMATTR Value DX SYMBOL voltage 1200 304 R0 SYMATTR InstName V7 SYMATTR Value .63V SYMBOL voltage 1312 304 R0 SYMATTR InstName V5 SYMATTR Value 0.27V SYMBOL diode 1408 320 R0 SYMATTR InstName D4 SYMATTR Value DX SYMBOL voltage 912 496 R0 SYMATTR InstName V4 SYMATTR Value 0.27V SYMBOL diode 1088 512 R0 SYMATTR InstName D3 SYMATTR Value DX SYMBOL ind 1184 496 R0 SYMATTR InstName L3 SYMATTR Value 500p SYMBOL Misc\\EuropeanResistor 1296 496 R0 SYMATTR InstName RL3 SYMATTR Value 100K TEXT -680 -24 Left 2 !.SUBCKT LM358 1 2 99 50 28 TEXT -448 32 Left 2 ;***************INPUT STAGE************** TEXT -656 280 Left 2 ;^Input offset current TEXT -376 440 Left 2 ;Fp2=1.2 MHz TEXT -664 608 Left 2 ;**********COMMON MODE EFFECT*********** TEXT -552 688 Left 2 ;^Quiescent supply current TEXT -112 360 Left 2 ;Input offset voltage.^ TEXT 384 32 Left 2 ;********OUTPUT VOLTAGE LIMITING******** TEXT 24 40 Left 2 ;*************SECOND STAGE************** TEXT 216 504 Left 2 ;Fp1=7.86 Hz TEXT 400 288 Left 2 ;**************POLE STAGE*************** TEXT 536 320 Left 2 ;Fp=2 MHz TEXT 368 608 Left 2 ;********COMMON-MODE ZERO STAGE********* TEXT 464 640 Left 2 ;Fpcm=10 KHz TEXT 912 16 Left 2 ;*************OUTPUT STAGE************** TEXT 840 688 Left 2 ;**************MODELS USED************** TEXT 832 728 Left 2 !.MODEL DX D (IS=1E-15) TEXT 832 760 Left 2 !.MODEL QX PNP (BF=1.111E3) TEXT 840 816 Left 2 !.ENDS